hi,

i am under the impression that any meaningful mod on my 97 ssei really changing the pcm settings. even something as simple as a 180 thermo will throw a coolant code right? much less rockers and/or a smaller pulley and/or headers and exhauste.

with that in mind, i have a actron 9180 code reader/scanner. i do not see a kr reading, per se, to scan but there is a "ing advance de" reading, that is what i need to watch, right? what exactly would i be watching for if i mod the motor, the reading falling below or above a certain level or range?

once the scanner issue is cleared up, i would need a tuner to change the pcm. it seems like hp tuners are the way to go, agreed? i ama bit confused with their credit system tho...once a car is paided for, can it be programmer any number of times? or do you have to pay for each time you program every car or pcm?

thanks for your comments,

peter

Basic mods like a thermostat won't throw a code. The computer doesn't care above 170 or so, in my experience running both a stock and Intense computer with a 180 thermostat.

Almost anything to do with flow that's not the supercharger, such as headers and rockers, can be adapted to. The tuned computer is better at adapting since it can be tuned to take advantage of those mods.

_________________
2012 Chevrolet Cruze Eco - Current car

1999 Buick LeSabre Custom - Former car

Learn from the mistakes of others, that way when you mess up you can do so in new and interesting ways.

Computers do care when it's 8 degrees outside. I got a P0128 code today with my 180* Thermostat. NBD, cleared it with my aeroforce. The computer sees that the car is taking a long time to heat up and throws the code because it doesn't know why.

With HPT, you buy credits either for a specific car, IE your 1997 Bonneville SSEi VIN:XXX... or buy an entire model year, IE: all 1997 Bonneville's. Once you have the credits, you can tune as many times as you want. The software comes with 8 credits I believe, and for one GM V6 car it's 2 credits, and for a model year I think it's 4 credits, but I'm not 100% sure on that.

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Bye Bye:

RIP sandrock

No, a cam will set a misfire code. Rockers just open the valves more, a cam also changes the duration and timing of when the valves open, basically causing misfires at idle.

Where do you live? This would've probably happened if I had a 195* thermostat in my car too. It was just so cold my car couldn't get past 170* on the highway, and it took a while to get that warm. The last time before this I got the P0128 code was when my stock thermostat was stuck open, last nov-dec. before I did my LIM gaskets and put in a new thermostat.

_________________
Bye Bye:

RIP sandrock

Ok, the P0128 is probably a stuck thermostat. What code is the bonne throwing?

_________________
Bye Bye:

RIP sandrock

you have 2 bonnie's eh? which do you like better, the SSEi or the GXP? and why?

thanks,
peter

This is way off topic, but I'll bite. The GXP is actually my dad's car, but I still live at home (still in HS) and take care of it and drive it occasionally. I like both for what they are, but the GXP has the SSEi on everything but the engine. Interior, handling, braking, exterior, hands down the GXP is better. But the northstar just doesn't have the pull off the line that my SSEi has, especially with the mods I have on my SSEi. I do think the 4T80E is far superior to the 4T65E-HD.

_________________
Bye Bye:

RIP sandrock